/Engine/Plugins/Runtime/RigVM/Source/RigVMEditor/Public/Editor/RigVMGraphDetailCustomization.h
Returns the numeric value of a vector component (or empty optional for varying values)
template<typename VectorType, typename NumericType> [TOptional](API\Runtime\Core\IO\TOptional)< NumericType > GetVectorComponent ( [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< class [IPropertyHandle](API\Editor\PropertyEditor\IPropertyHandle) > InPropertyHandle, int32 InComponent )